JP2001310872A - Automatic winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic winder provided with a yarn splicing device capable of surely sucking and holding a yarn end on a yarn feed bobbin side by a yarn supply side yarn end sucking and acquiring device without a fail. SOLUTION: This automatic winder is provided with an injection air nozzle forming member 19 having an injection port 20 at a position facing a yarn end acquiring position (two-dot chain lines parts in Figure 1 and Figure 2) of a suction port 11b at a tip part of a relay pipe 11 across a thread passage regulating hole 6 and an upstream side of a cleaning air injection port 17 on the most upstream side. The injection air nozzle forming member 19 is projectingly provided toward a depth side of a unit U from a yarn detecting part mounting surface 16 (a depth side from the viewpoint of the front of the unit U) and is arranged substantially along the direction of air injected from the cleaning air injection port 17 (the direction of the arrow 28), and thereby piling of yarn waste and fly waste fed to an open ceiling part on the depth side is prevented by air injected from the cleaning air injection port 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn splicing section provided on a path from a yarn supplying section to a winding section, and a yarn end on the yarn supplying section side is sucked and captured to guide the yarn to the above-mentioned splicing section. The present invention relates to an automatic winder provided with a yarn supply unit side yarn end suction and capture device.

[0002]

2. Description of the Related Art In an automatic winder, a yarn unwound from a supplied yarn supplying bobbin is rewound into a package having a predetermined shape while removing a yarn defect existing in the middle of the yarn. Here, in order to form one package, usually several to several tens of yarn supplying bobbins are required.

When the yarn is broken or the yarn supplying bobbin is emptied, if a new yarn supplying bobbin is to be replaced and the rewinding operation is to be continued, the yarn end on the winding side and the yarn on the yarn supplying side, that is, the yarn on the yarn supplying bobbin side, It is necessary to perform the piecing operation with the end. In order to perform this piecing operation, the automatic winder has a piecing part provided in a yarn path from the yarn supply side to the winding part side, and a yarn end on the yarn supply side connected to a suction port at a tip end. The yarn supply side yarn end suction / capture device which captures after being sucked by the force of the suction air and guides the yarn end to the splicing portion by swiveling motion, and the force of the suction air at the suction port at the tip end of the yarn end on the winding side. And a take-up side yarn end suction and capture device that captures after suctioning and guides the yarn end to the piecing part by swiveling motion.

[0004] In the splicing operation, the yarn end on the yarn supply side is captured by the yarn supply side yarn end suction and capture device, and is guided to the yarn splicing portion by swiveling motion. On the other hand, since the yarn end on the winding side has already been wound on the winding package, first, the suction port of the yarn end suction / capture device on the winding side stops around the winding package by swiveling motion, and the package is moved to the normal state. The yarn end on the winding side is caught by the above-mentioned yarn end suction and capture device on the winding side by being rotated for a predetermined time in a direction opposite to the rotation direction at the time of the winding operation, so that the yarn end on the winding side is swung to the yarn splicing portion. Being guided,
The splicing section performs splicing.

[0005]

In the case where a new yarn supplying bobbin is replaced with a new yarn supplying bobbin and the rewinding operation is continuously performed, when the suction port of the yarn supplying side yarn end suction / capturing device is located at the yarn end capturing position, the yarn supplying bobbin is not moved. The yarn end is sent to the vicinity of the yarn end catching position by blowing air blown up from below, and the suction end of the yarn end of the yarn supply side yarn end suction and capture device is sucked and held by the suction air. However, in some cases, it is necessary to increase the radius of the swiveling motion in order to prevent the yarn supply side yarn end suction and capture device from coming into contact with other devices during the rotation. In some cases, the yarn end catching position that arrives later cannot be brought close to the position of the yarn end of the yarn supplying bobbin guided by the blowing air. In this case, a shortage of the suction force by the above-described catching device occurs, and the suction and holding by the yarn supply-side yarn end suction and catching device fails.

In particular, there is provided a cleaning device for removing lint, fly waste, and the like generated by the yarn winding from the winder, and a cleaning air (cleaning air) injection direction of the cleaning air device is set to a yarn supply side yarn. If it is in a direction different from the direction in which the suction force of the end suction capture device acts,
Since the cleaning air acts to hinder the suction holding by the yarn supply side yarn end suction and capture device, there is a high possibility that a yarn end capture error will occur.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides an automatic winder capable of reliably performing suction holding of a yarn end on a yarn supplying bobbin side by a yarn supply side yarn end suction and capture device without fail. The purpose is to do.

[0008]

In order to achieve the above object, an invention according to claim 1 includes a yarn splicing portion provided on a path from a yarn supply portion to a winding portion, and a yarn at a yarn supply portion side. An automatic winder comprising: a yarn supply unit-side yarn end suction capture device that suctions and captures the end at a yarn supply position on the yarn supply unit and guides the end to the yarn joining unit. An injection air nozzle for blowing injection air to a suction port of the yarn supply side yarn end suction and capture device at the capture position is provided. In the present invention, the yarn supply side yarn end suction and capture is provided by providing the injection air nozzle for blowing the injection air to the suction port of the yarn supply side yarn end suction and capture device at the yarn end capture position on the yarn supply section side. Since the jet air is supplied in the direction in which the suction force of the device acts, it is possible to assist the suction and holding of the yarn end on the yarn supplying bobbin side by the yarn supply side yarn end suction and capture device.

According to a second aspect of the present invention, the injection port of the injection air nozzle is open in a direction facing the suction port. According to the present invention, the ejection port of the ejection air nozzle is opened in a direction facing the suction port, so that suction holding of the yarn end on the yarn supply bobbin side by the yarn supply-side yarn end suction and capture device is more reliably performed. can do.

According to a third aspect of the present invention, there is provided a cleaning device for injecting cleaning air in a direction different from the direction in which the suction force of the yarn supply unit side yarn end suction and capture device acts, and The ejection port of the cleaning device is spaced from the ejection port of the ejection air nozzle so as to avoid direct interference with the ejection air of the ejection air nozzle. According to the present invention, by disposing the ejection port of the cleaning device apart from the ejection port of the ejection air nozzle so as to avoid direct interference between the cleaning air flow and the ejection air of the ejection air nozzle. When the yarn supply side yarn end suction and capture device suctions and holds the yarn end on the yarn supply bobbin side, the effect of cleaning air acting in a direction different from the direction in which the suction force of the yarn supply side yarn end suction and capture device acts is reduced. can do.

According to a fourth aspect of the present invention, the member for forming the jet air nozzle is directed in a direction along the cleaning air jet direction from the jet port of the cleaning device. According to the present invention, since the forming member of the jet air nozzle is directed in the direction along the cleaning air jet direction from the jet port of the cleaning device, the lint, fly waste, and the like removed by the cleaning air are removed by the air. Accumulation on the injection nozzle can be prevented.

According to a fifth aspect of the present invention, the jet air nozzle is connected to an air supply passage formed in a member at a yarn end capturing position of the yarn supply side yarn end suction and capture device. In the present invention, the injection air nozzle is connected to the air supply path formed in the member at the yarn end capturing position of the yarn supply side yarn end suction and capture device, thereby supplying the injection air to the injection nozzle. Since it is not necessary to separately provide the above-mentioned piping, it is possible to eliminate the accumulated portion of fly wool, lint and the like.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to the embodiments unless it departs from the gist of the present invention.

FIG. 1 is a perspective view showing the vicinity of a yarn end catching position of a yarn supplying bobbin 1 of a yarn end suction and capture device (hereinafter referred to as a relay pipe 11) in a yarn supply section side according to an embodiment of the present invention.
FIG. 2 is a front view showing a unit U of the automatic winder according to the embodiment of the present invention. FIG. 3 is a plan view showing the positional relationship between the yarn end catching auxiliary air nozzle 19 (injection pipe), the cleaning air injection port 17 and the tip end of the intermediate pipe 11 when the yarn Y is captured at the yarn end capturing position of the intermediate pipe 11. It is. FIG. 4 is a front view showing the state of the yarn path regulation by the tensor 23 shown in FIG.

The automatic winder according to the embodiment of the present invention comprises:
A large number of units U as shown in FIG. 2 are arranged side by side in the machine longitudinal direction, and each unit U is provided with a yarn joining portion 10 provided on a path from the yarn supplying bobbin 1 to a winding portion where the winding package P is located. And a suction pipe 9 as a yarn end suction and capture device on the yarn supply side and a suction pipe 9 as a yarn end suction and capture device on the yarn supply section side.

In the unit U shown in FIG. 2, a balloon breaker 2 that can move up and down is provided on the downstream side in the yarn unwinding direction, that is, on the winding side, of the yarn supplying bobbin 1 mounted on the hollow tray T. A yarn guiding tubular body 3 is provided downstream of the balloon breaker 2. At the upper end of the thread guide tubular body 3, a blow-up nozzle 5 at the tip side of the air supply pipe 4 is arranged. Immediately downstream of the blow-up nozzle 5, a yarn path regulating hole 6 and a tensor box 8 are provided.

The turning shaft 11 a of the relay pipe 11, which is located downstream of the tensor box 8 and protrudes from the frame 7.
A piecing portion 10 is provided on the downstream side, a clearer 12 having a cutter 13 is provided on the downstream side of the piecing portion 10, and a projection is provided on the frame 7 immediately downstream of the clearer 12. A turning shaft 9a of the winding-side yarn end suction and capture device is provided. Suction ports 9b and 11b are provided at the distal end sides of the suction mouth 9 and the relay pipe 11, respectively.

The most downstream side of the unit U is a package P
And a take-up drum 14 for contact rotation of the drum. The drum 14 has a groove 15 for traverse.

As shown in FIG. 1, a yarn feeler 21 serving as a yarn detecting portion is provided on a yarn detecting portion mounting surface 16 which is a side wall of the tensor box 8, and a cutter 22 is provided downstream of the yarn feeler 21. Is provided, and the cutter 22 is provided.
A gate type tensor 23 composed of a fixed part 23a and a movable part 23b rotatable about a shaft 24 shown in FIG. or,
As shown in FIGS. 2 and 3, a plurality of cleaning air injection ports 17 are provided on a rear surface of the front wall 18 on the front side of the tensor box 8.

Further, on the upstream side of the yarn feeler 21, there is provided an air injection port 20, and an injection air nozzle forming member 19 (injection tube) for forming a yarn end capturing auxiliary air nozzle is provided at a yarn end capturing position (described later). Are protruded from the yarn detecting unit mounting surface 16 as a member of
(The back side when viewed from the front). The injection air nozzle forming member 19 is located further upstream than the injection port located at the most upstream side of the injection ports 17. The back side of the tensor box 8 is open (open).

In FIG. 2, the yarn end of the yarn Y of the yarn supplying bobbin 1 newly sent from a conveyor (not shown) is in the hollow portion of the yarn supplying bobbin 1 as shown by a two-dot chain line. Blow-up air in the direction indicated by arrow 25 from the bottom of bobbin 1 and blow-up nozzle 5 positioned at the upper end of yarn guide tubular body 3
With the injection air, the air is raised toward the inside of the yarn guide tubular body 3 through the downstream balloon breaker 2. The balloon breaker 2 suppresses an increase in the yarn tension at the end of unwinding of the yarn Y unwound from the yarn supplying bobbin 1, and moves downward as the unwinding of the yarn Y progresses so that the yarn Y always has a substantially constant yarn tension. It has become.

The clearer 12 downstream of the piecing section 10 is
Detects abnormalities in slabs, thick yarns, fine yarns, etc.
The cutter 13 in 2 cuts the yarn Y, and the winding-side yarn end including the abnormal portion is rotated by contact with the winding drum 14 rotating in the direction of the arrow 30. P is once wound up. Here, the groove 15 on the surface of the winding drum 14 is formed so that the yarn Y traveling along the groove 15 traverses as the winding drum 14 rotates.

The suction port 11b at the tip of the relay pipe 11
Since the suction air is acting, the above-mentioned cut yarn Y
The yarn end on the upstream side is sucked and captured, and while maintaining that state, the yarn end is turned around the turning shaft 11a to the position shown by the two-dot chain line. Further, the suction mouth 9 is configured to pivot around the pivot axis 9a to the position indicated by the two-dot chain line, and suction air is supplied to the suction port 9b at the distal end of the relay pipe 11 similarly to the suction port 11b at the distal end. Working. Also, at the time of thread cutting, the winding drum 14 rotates in the reverse direction to that during normal winding, and the reverse rotation of the winding drum 14 and the action of suction air from the suction port 9 b at the tip of the suction mouth 9. As a result, the yarn end on the winding side wound up is pulled out and the suction mouth 9 catches it.

When the splicing pipe 11 and the suction mouth 9 complete the catching of the yarn ends, each of them turns again to the position shown by the solid line, and both the upstream and downstream yarns are spliced at the yarn splicing section 10. ing. Here, the abnormal portion of the yarn is removed by being sucked by the suction air of the suction mouth 9 and discarded.

Next, in the tensor box 8 shown in FIG. 1, the yarn feeler 21 serving as a yarn detecting unit detects the presence or absence of the yarn Y, and includes, for example, an optical feeler. The tensor 23 on the downstream side of the yarn feeler 21
The running yarn Y is bent as shown in FIG. 4 to apply tension, and at the time of the above-described yarn splicing, the suction port 11b at the distal end of the splicing pipe 11 has a two-dot chain line shown in FIG. When the movable part 2 reaches the position (the yarn end catching position),
3a is rotated about the shaft 24 in the direction of the arrow 29 (in the direction opposite to the paper surface of FIG. 4) to release the bending of the thread path.

The cleaning air injection port 17 injects cleaning air (cleaning air) in the direction of arrow 28 in FIGS. 1 and 3 when the suction port 11b of the relay pipe 11 is located at the yarn end capturing position. The fly waste and lint accumulated at the yarn end catching position and the surrounding area are sent to the back side of the unit U (the back side when viewed from the front of the unit U), and the unit U
(Winder) from inside.

The cutter 22 cuts the entangled portion (yarn waste) and the yarn Y on the yarn supply side when the yarn Y is entangled with the tensor 23 when it reaches the position of the two-dot chain line of the intermediate pipe 11. The entangled portion after cutting along with the bending and opening of the yarn path of the tensor 23 is formed by the cleaning air jet 17 from which the cleaning air is supplied in the direction of the arrow 28 in FIGS. It is designed to be released to the side atrium.

When the splicing pipe 11 is turned to the position indicated by a two-dot chain line as shown in FIGS.
1b and the injection port 2 in a direction facing the yarn path regulating hole 6.
0, so that the injection air is supplied in the direction of arrow 27. In other words, by applying air in the same direction as the direction of the suction air (the direction of arrow 26) of the suction port 11b at the tip of the splicing pipe 11, the splicing pipe 11 is When catching the yarn end, the yarn Y is guided to the relay pipe 11 against the air in the direction of the arrow 28 of the cleaning air jet 17.

The air blown up from the bottom of the tray T, the cleaning air, and the air of the jetting air nozzle forming member 19 in FIG. 2 are jetted almost simultaneously when the suction mouth 9 and the relay pipe 11 reach the position indicated by the two-dot chain line. And a plurality of cleaning air injection ports 17
Since the air jetted from the nozzle is in a direction different from the direction of the air at the jet port 20, the jet air nozzle forming member 19 is provided with the jet port 13 located at the most upstream side in order to avoid direct interference of the air flows with each other. It is located on the upstream side.

In FIGS. 1 and 3, the reason why the jetting air nozzle forming member 19 projects from the yarn detecting portion mounting surface 16 to the yarn detecting portion mounting surface 16 which is the member at the yarn end capturing position is the jet nozzle. This is so that a separate pipe for supplying the injection air to the forming member 19 is not provided. Further, the reason why the ejection air nozzle forming member 19 is directed to the back side of the unit U (the back side when viewed from the front of the unit U) is the direction of the cleaning air ejected from the cleaning air ejection port 17 (the direction of arrow 28). ).
Thus, it is possible to prevent lint, fly waste, and the like to be sent to the deep blow-by portion by the air injected from the cleaning air injection port 17 from accumulating on the injection air nozzle forming member 19.

Next, the operation at the time of replacing the yarn supplying bobbin 1 will be described.

In FIG. 2, when the yarn supplying bobbin 1 is completely unwound to become an empty bobbin, the suction mouth 9 and the splicing pipe 11 are respectively detected by the yanfila 21 after the yarn end has passed and detecting the absence of the yarn. It turns around the shafts 9a and 11a and stops at the position indicated by the two-dot chain line.

At this time, the yarn supplying bobbin 1 different from the empty bobbin is fed in by being replaced, and the yarn end in the hollow portion of the yarn supplying bobbin 1 positioned at the position shown in FIG. Blow-up air (in the direction of arrow 25) is applied, and the blow-up air is fed into the yarn guide tubular body 3 through the balloon breaker 2. Further, the yarn Y sent into the yarn guide tubular body 3 is passed through the yarn path regulating hole 6 by the blowing air of the blowing nozzle 5.

In FIG. 1 and FIG.
When 1 is stopped at the position indicated by the two-dot chain line, air is jetted from the jet port 20 of the yarn end catching auxiliary nozzle 19 and the cleaning air jet port 17 at substantially the same time and in directions substantially opposite to each other. Since the injection port 20 of the injection air nozzle forming member 19 and the suction port 11b of the relay pipe 11 are provided so as to face each other, the yarn path regulating hole 6 is formed.
Is passed through the cleaning air by the sum of the force of the suction air from the suction port 11b at the end of the splicing pipe 11 located at the yarn end capturing position and the force of the injection air of the injection air nozzle forming member 19. It is fed into the suction port 11b of the relay pipe 11 in opposition. Further, as shown in FIG. 1 and FIG. 2, the ejection air nozzle forming member 19 and the cleaning air ejection port 17 on the most upstream side are separated from each other to avoid interference between the ejection air and the yarn. Y
Can improve the capture success rate.

At this time, the movable portion 23b of the tensor 23 is rotated about the shaft 24 in the direction of the arrow 29 in FIG. 4, so that the bending of the yarn path is released, that is, the fixed portion 23a and the movable portion 23b. Is open. Relay pipe 1
When the yarn Y on the yarn feeder 1 is returned to the position indicated by the solid line after the catch of the yarn Y, the yarn Y on the yarn supply side is threaded between the fixed portion 23a and the movable portion 23b of the tensor 23 and sent to the yarn splicing portion 10. Can be

On the other hand, on the winding side, the yarn end once wound on the package P is rotated in the reverse direction of the winding drum 14 and the suction port at the tip of the suction mouth 9 which has been turned to the position indicated by the two-dot chain line in FIG. Pull out by the suction force of 9b. The drawn-out yarn Y on the winding side is captured by the suction mouth 9 and sent to the piecing portion 10 when returning to the position shown by the solid line.

The yarn Y on the winding side and the yarn supplying side sent by the above operations of the suction mouth 9 and the splicing pipe 11 are spliced at the splicing portion 10, and the winding drum 14 returns to normal rotation. By doing so, the winding operation is resumed.

As described above, at the position facing the yarn end catching position (the two-dot chain line portion in FIGS. 1 and 2) of the suction port 11b at the end of the relay pipe 11 with the yarn path regulating hole 6 interposed therebetween, and at the most upstream position By providing the injection port 20 further upstream than the cleaning air injection port 17 on the side, the sum of the force of the suction air of the relay pipe 11 and the force of the injection air of the injection port 20 is:
It is possible to increase the success rate of catching the yarn Y on the yarn supply side into the suction port at the end of the relay pipe 11 against the force of the injection air from the cleaning air injection port 17.

[0039]

The present invention is configured as described above.
The following effects are obtained.

According to the first aspect of the present invention, the yarn splicing section provided on the path from the yarn supply section to the winding section, and the yarn end on the yarn supply section side are connected to the yarn end capture position on the yarn supply section side. An automatic winder provided with a yarn-supply-side-side yarn-end suction-capturing device for suction-capturing and guiding the yarn to the yarn splicing section. By providing a jet air nozzle for blowing jet air to the suction port of the device, the jet air is supplied in the direction in which the suction force of the yarn supply side yarn end suction and capture device acts, so the yarn supply side yarn end suction and capture The suction holding of the yarn end on the yarn supplying bobbin side by the device can be assisted. Therefore, it is possible to increase the capture success rate of the yarn supply side yarn end suction and capture device and reduce the time loss of piecing.

According to the second aspect of the present invention, since the injection port of the injection air nozzle is opened in a direction facing the suction port, the yarn supplying bobbin is more reliably provided by the yarn supply side yarn end suction and capture device. The suction holding of the side yarn end can be assisted, and the capture success rate of the yarn supply side yarn end suction capture device can be further increased.

According to the third aspect of the present invention, there is provided a cleaning device for injecting cleaning air in a direction different from the direction in which the suction force of the yarn supply unit side yarn end suction and capture device acts.
The jet port of the cleaning device is spaced apart from the jet port of the jet air nozzle so as to avoid direct interference between the cleaning air flow and the jet air of the jet air nozzle. When the yarn end suction and capture device sucks and holds the yarn end on the yarn supplying bobbin side, the effect of the cleaning air acting in the direction opposite to the direction in which the suction force of the yarn supply side yarn end suction and capture device acts can be reduced. .

According to the fourth aspect of the present invention, since the forming member of the injection air nozzle is directed in the direction along the cleaning air injection direction from the injection port of the cleaning device, the member is eliminated by the cleaning air. It is possible to prevent lint, fly waste and the like from accumulating on the air injection nozzle.

According to the fifth aspect of the present invention, since the jetting air nozzle is connected to an air supply path formed in a member at a yarn end capturing position of the yarn supply side yarn end suction and capture device, the injection is made. Since it is not necessary to separately provide a pipe for supplying the injection air to the nozzle, it is possible to eliminate a piled portion such as fly waste and lint.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the vicinity of a yarn end capturing position of a yarn supplying bobbin of a splicing pipe according to an embodiment of the present invention.

FIG. 2 is a front view showing a unit of the automatic winder according to the embodiment of the present invention.

FIG. 3 is a plan view showing a positional relationship between a jet air nozzle forming member, a cleaning air jet port, and a suction port at a tip end of the splicing pipe at the time of catching a yarn at a thread end catching position of the splicing pipe shown in FIG. 1; .

FIG. 4 is a front view showing a state of yarn path regulation by the tensor shown in FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 9 suction mouth 10 yarn splicing part 11 splicing pipe 9 b, 11 b suction port 16 yarn detection mounting surface 17 cleaning air jet 19 jet air nozzle forming member 20 jet

Claims (5)

[Claims] 1. A yarn splicing section provided in a path from a yarn supply section to a winding section, and a yarn end on a yarn supply section side are sucked and captured at a yarn end capturing position on the yarn supply section side to perform the yarn splicing. An automatic winder having a yarn-supply-side-side yarn-end suction-capturing device for guiding the yarn-supplying unit to a yarn-supply-side yarn-end suction-capture device at a yarn-end capturing position on the yarn supply unit. An automatic winder having an injection air nozzle for spraying. 2. The automatic winder according to claim 1, wherein an ejection port of the ejection air nozzle is opened in a direction facing the suction port. 3. A cleaning device for injecting cleaning air in a direction different from a direction in which a suction force of the yarn supply unit side yarn end suction and capture device acts, wherein the cleaning air flow and the injection of the injection air nozzle are provided. 3. The automatic winder according to claim 1, wherein an injection port of the cleaning device is arranged apart from an injection port of the injection air nozzle so as to avoid direct interference with air. 4. The automatic winder according to claim 3, wherein the forming member of the injection air nozzle is directed in a direction along a cleaning air injection direction from an injection port of the cleaning device. 5. The yarn supply nozzle according to claim 1, wherein the injection air nozzle is connected to an air supply passage formed in a member at a yarn end capturing position of the yarn supply side yarn end suction and capture device. Automatic winder as described.